10297-06-0 = 928-89-2 反应条件:1.1 Reagents: Hydrogen Catalysts: Palladium,Silver Solvents: Ethanol; 1.5 H,Rt 标题:Design Of Core-Pd/shell-Ag Nanocomposite Catalyst For Selective Semihydrogenation Of Alkynes 作者:Mitsudome,Takato; Urayama,Teppei; Yamazaki,Kenji; Maehara,Yosuke; Yamasaki,Jun; Et Al 参考文献:Acs Catalysis 日期:2016 卷标:6(2) 页码:666-670]
10297-06-0 = 928-89-2 反应条件:1.1 Reagents: Triethanolamine Catalysts: 2,3-Dihydroxynaphthalene,Copper (Loaded On 2,3-Dihydroxynaphthalene-Modified Tio2),Titania Solvents: Acetonitrile,Water; 7 H,329 K 标题:Visible Light-Induced Diastereoselective Semihydrogenation Of Alkynes To Cis-Alkenes Over An Organically Modified Titanium(Iv) Oxide Photocatalyst Having A Metal Co-Catalyst 作者:Fukui,Makoto; Omori,Yuya; Kitagawa,Shin-Ya; Tanaka,Atsuhiro; Hashimoto,Keiji; Et Al 参考文献:Journal Of Catalysis 日期:2019 卷标:374 页码:36-42]
10297-06-0 = 928-89-2 反应条件:1.1 Catalysts: Copper,Titania (Copper-Modified) Solvents: Isopropanol; 6 H,298 K 标题:Copper-Modified Titanium Dioxide: A Simple Photocatalyst For The Chemoselective And Diastereoselective Hydrogenation Of Alkynes To Alkenes Under Additive-Free Conditions 作者:Kominami,Hiroshi; Higa,Megumi; Nojima,Taketo; Ito,Tomohiko; Nakanishi,Kousuke; Et Al 参考文献:Chemcatchem 日期:2016 卷标:8(12) 页码:2019-2022]
6940-76-7 = 928-89-2 反应条件:1.1 Reagents: Lithium Chloride,Ammonium Bromide,Polyethylene Glycol Catalysts: Palladium Diacetate,Copper Diacetate Monohydrate Solvents: Dimethylformamide,Water; 12 H,0 °C 标题:Palladium-Catalyzed Electrochemical Allylic Alkylation Between Alkyl And Allylic Halides In Aqueous Solution 作者:Lai,Yin-Long; Huang,Jing-Mei 参考文献:Organic Letters 日期:2017 卷标:19(8) 页码:2022-2025]
10297-06-0 = 928-89-2 反应条件:1.1 Reagents: Ammonia Borane Catalysts: Gold,Titania Solvents: Ethanol; 4 H,25 °C 标题:Cis-Semihydrogenation Of Alkynes With Amine Borane Complexes Catalyzed By Gold Nanoparticles Under Mild Conditions 作者:Vasilikogiannaki,Eleni; Titilas,Ioannis; Vassilikogiannakis,Georgios; Stratakis,Manolis 参考文献:Chemical Communications (Cambridge 日期:2015 卷标:51(12) 页码:2384-2387]
1779-49-3 + 20074-80-0 = 928-89-2 反应条件:1.1 Reagents: Potassium Tert-Butoxide Solvents: Tetrahydrofuran; 1 H,Rt1.2 Solvents: Tetrahydrofuran; Overnight,Rt 标题:Palladium-Catalyzed Regiodivergent Hydrochlorocarbonylation Of Alkenes For Formation Of Acid Chlorides 作者:Wu,Fei; Wang,Bo; Li,Na-Qi; Yang,Hui-Yi; Ren,Zhi-Hui; Et Al 参考文献:Nature Communications 日期:2023 卷标:14(1)]
10297-06-0 = 928-89-2 反应条件:1.1 Reagents: Ammonia Borane Catalysts: Cupd (Cupd@zif-8) Solvents: Methanol; 5 Min,Rt 标题:Accelerating Chemo- And Regioselective Hydrogenation Of Alkynes Over Bimetallic Nanoparticles In A Metal-Organic Framework 作者:Li,Luyan; Yang,Weijie; Yang,Qihao; Guan,Qiaoqiao; Lu,Junling; Et Al 参考文献:Acs Catalysis 日期:2020 卷标:10(14) 页码:7753-7762]
821-41-0 = 928-89-2 反应条件:1.1 Reagents: Carbon Tetrachloride,Triphenylphosphine; 4 H,Reflux 标题:Preparation Of ω-Ethene Sulfuryl Disulfide And Its Application As Self-Assembled Monolayer 参考文献:China]
2622-05-1 = 928-89-2 [标题:Reaction Conditions 标题:Production Of Biologically Active Compounds By Catalytic Olefin Metathesis 参考文献:United States]
821-41-0 = 928-89-2 反应条件:1.1 Reagents: Thionyl Chloride; 1 H,Reflux 标题:Synthesis Of Diastereomeric 8-Fluoro-Abc-Steroid Building Blocks 作者:Essers,Michael; Haufe,Guenter 参考文献:European Journal Of Organic Chemistry 日期:2023 卷标:26(17)]
= 928-89-2 反应条件:1.1 Reagents: Magnesium Solvents: Diethyl Ether1.2 Solvents: Tetrahydrofuran1.3 -1.4 Reagents: Water 标题:6-Chloro-1-Hexene And 8-Chloro-1-Octene (1-Hexene,6-Chloro- And 1-Octene,8-Chloro-) 作者:Mazerolles,Pierre; Boussaguet,Paul; Huc,Vincent 参考文献:Organic Syntheses 日期:1999 卷标:76 页码:221-227]
10297-06-0 = 928-89-2 反应条件:1.1 Reagents: Isopropanol,Methyldimethoxysilane Catalysts: Zirconocene Chloride Hydride Solvents: Tetrahydrofuran; 22 H,35 °C 标题:Selective Zirconocene Hydride-Catalyzed Semi-Hydrogenation Of Terminal Alkynes 作者:Kehner,Rebecca A.; Lubaev,Alexandra E.; Rathnayake,Manjula D.; Loden,Ryan; Zhang,Ge; Et Al 参考文献:Tetrahedron 日期:2023 卷标:133]
123333-21-1 = 928-89-2 + 123333-22-2 [标题:Reaction Conditions 标题:Preparative Flash Vacuum Thermolysis. Selective Elimination Of 6-Chloro-1-Hexene From Esters Of 6-Chloro-1-Hexanol With Schoenberg Rearrangement Of The S-Methyl Xanthate 作者:Jenneskens,Leonardus W.; Hoefs,Cornelis A. M.; Wiersum,Ulfert E. 参考文献:Journal Of Organic Chemistry 日期:1989 卷标:54(24) 页码:5811-14]
6294-17-3 = 928-89-2 反应条件:1.1 Reagents: Butyllithium,Triphenylphosphine,1,8-Diazabicyclo[5.4.0]Undec-7-Ene,Bis(Triphenylphosphine)Nickel Dichloride Solvents: Tetrahydrofuran 标题:Nickel-Mediated Elimination Of Hydrogen Halide From Primary And Secondary Alkyl Bromides And Iodides. Synthetic Aspects 作者:Henningsen,Michael C.; Jeropoulos,Sotiris; Smith,Edward H. 参考文献:Journal Of Organic Chemistry 日期:1989 卷标:54(13) 页码:3015-18]
821-41-0 = 928-89-2 反应条件:1.1 Reagents: Tosyl Chloride,Pyridine; 3 H,0 °C1.2 Reagents: Hydrochloric Acid Solvents: Water1.3 Reagents: Lithium Chloride Solvents: Acetone; 3 H,50 °C; 30 Min,75 °C 标题:Cobalt-Catalyzed Directed Alkylation Of Olefinic C-H Bond With Primary And Secondary Alkyl Chlorides 作者:Yamakawa,Takeshi; Seto,Yuan Wah; Yoshikai,Naohiko 参考文献:Synlett 日期:2015 卷标:26(3) 页码:340-344]
10297-06-0 = 928-89-2 反应条件:1.1 Reagents: Hydrogen Catalysts: Ceria,Gold Solvents: Toluene; 25 H,30 Atm,120 °C 标题:Gold-Cerium Oxide Supported Composite Catalyst Supported On Alkaline Carrier And Its Manufacturing Method 参考文献:Japan]
2622-05-1 = 928-89-2 反应条件:1.1 Solvents: Tetrahydrofuran; Rt 标题:Synthesis Of 11-Methyl-13-Azabicyclo[7.3.1]Trideca-3,10-Diene,A Macrobicycle With The 9B-Azaphenalene Carbon Framework,Based On The Combination Of Allylboration And Intramolecular Metathesis 作者:Kuznetsov,N. Yu.; Khrustalev,V. N.; Strelkova,T. V.; Bubnov,Yu. N. 参考文献:Russian Chemical Bulletin 日期:2014 卷标:63(11) 页码:2502-2508]
821-41-0 = 928-89-2 反应条件:1.1 Reagents: N,N-Dimethylaniline,Thionyl Chloride Solvents: Benzene 标题:Rate Constant For Chlorine Abstraction From Carbon Tetrachloride By The 5-Hexenyl Radical 作者:Jewell,Deborah Rae; Mathew,Lukose; Warkentin,John 参考文献:Canadian Journal Of Chemistry 日期:1987 卷标:65(2) 页码:311-15
5-己烯酸置于草酰氯体系中,用 N,N-二甲基甲酰胺 作为反应溶剂,化学反应 0.25H,反应生成 6-氯-1-己烯 参考文献:Mo-或w-基单芳基氧化物吡咯烷(Map)配合物催化的闭环复分解(Rcm)反应有效和选择性地形成大环双取代z烯烃:在表拉烯,柚子内酯,Ambrettolide,埃坡霉素c和nakadomarin全合成中的应用一种 标题:Mo-或w-基单芳基氧化物吡咯烷(Map)配合物催化的闭环复分解(Rcm)反应有效和选择性地形成大环双取代z烯烃:在表拉烯,柚子内酯,Ambrettolide,埃坡霉素c和nakadomarin全合成中的应用一种 摘要:描述了通过催化闭环复分解 (Rcm)高效z选择性形成大环双取代烯烃的第一套广泛适用的方案.在 22 oc 下,使用 1.2-7.5 Mol% 的 Mo 或 W 基单芳基氧化物吡咯烷 (Map) 络合物进行环化,通常在两小时内完成转化.代表性的大环烯烃的合成证明了实用性,例如天然产物柚子内酯(13 元环:73 % Z)表漆烯(15 元环:91 % Z),Ambrettolide(17 元环:91 % Z),埃坡霉素 C 和 A(16 元环:高达 97 % Z)和 Nakadomarin A(15 元环:高达97 % Z)的高级前体z).我们表明,催化z选择性环化可以在克级有效地进行,复杂的分子起始材料和催化剂可以在空气中处理.我们阐明了催化协议的几个关键原则:1) Mo 催化剂的互补性质,提供高活性,但更容易产生 Rcm 后立体异构化,而 W 变体提供较低的活性但不太倾向于导致失去动力学z选择性.2) DOI:10.1002/chem.201204045
专利号:US-8569560-B2 优先权日:2006-10-13 标题 :Synthesis of terminal alkenes from internal alkenes via olefin metathesis 发明人:SCHRODI YANN; PEDERSON RICHARD L; KAIDO HIROKI; TUPY MICHAEL J 权利人:ELEVANCE RENEWABLE SCIENCES 摘要:This disclosure relates generally to olefin metathesis, and more particularly relates to the synthesis of terminal alkenes from internal alkenes using a cross-metathesis reaction catalyzed by an olefin metathesis catalyst. According to one aspect, for example, a method is provided for synthesizing a terminal olefin, the method comprising contacting, in the presence of a ruthenium alkylidene metathesis catalyst, an olefinic substrate comprised of at least one internal olefin with a cross metathesis partner comprised of an alpha olefinic reactant, under reaction conditions effective to allow cross-metathesis to occur, wherein the reaction conditions include a reaction temperature of at least 35° C. The methods, compositions, reactions and reaction systems herein disclosed have utility in the fields of catalysis, organic synthesis, and industrial chemistry.
专利号:US-6215019-B1 优先权日:1998-09-01 标题 :Synthesis of 5-decenyl acetate and other pheromone components 发明人:PEDERSON RICHARD L; GRUBBS ROBERT H 权利人:TILLIECHEM INC 摘要:The present invention relates to syntheses of 5-decenyl acetate, the major component in Peach Twig Borer pheromone, and other pheromone components. The syntheses entails few reaction steps, use commercially available starting materials, and have relatively short process times. A preferred embodiment of the syntheses involves self-metathesizing 1-hexene in the presence of Grubbs' catalyst, [(PCy3)2Cl2]Ru=CHPh. The resulting 5-decene is then reacted with an alcohol or acetate protected hexene under vacuum to yield 5-decenyl acetate. These syntheses produce good yields without the need for expensive or sophisticated equipment.
专利号:WO-2015008097-A1 优先权日:2013-07-19 标 题:Asymmetric synthesis of chiral compounds 发明人:FLETCHER STEPHEN PATRICK; PORTELA MIREIA SIDERA; YOU HENGZHI; RIDEAU EMELINE 权利人:ISIS INNOVATION; FLETCHER STEPHEN PATRICK; PORTELA MIREIA SIDERA; YOU HENGZHI; RIDEAU EMELINE 摘要:The present invention provides processes for the production of chiral compounds in a stereoisomeric excess, the processes comprising: (i) contacting a first compound comprising an alkene or alkyne bond with a hydrometallating agent, wherein the first compound and the hydrometallating agent are contacted under conditions such that the first compound is hydrometallated by said hydrometallating agent; and (ii) contacting the hydrometallated first compound with a second compound comprising an allylic group, wherein the hydrometallated first compound and the second compound are contacted under conditions such that they undergo an asymmetric allylic alkylation reaction in which a carbon atom of the hydrometallated first compound binds to a carbon atom of said allylic group, forming a stereoisomeric excess of a compound having a chiral centre in an allylic position, said chiral centre being located at the carbon atom bound by said first compound, wherein said asymmetric allylic alkylation reaction is performed in the presence of a metal catalyst comprising a chiral ligand. In particular, the present invention provides processes for the production of a stereoisomeric excess of a compound of the formula (IA), (IB), (IA') or (IB') as defined herein.
专利号:US-4701514-A 优先权日:1984-03-06 标题:Difunctionalized polyarylene polyethers and process for preparation thereof 发明人:PERCEC VIRGIL 权利人:GOODRICH CO B F 摘要:Oligomers of polyarylene polyethethers (PAPE) having a mol wt &upbar& M in the range from 1000 to about 10,000 are converted to difunctionalized oligomers so as, in the first instance, to provide a reactive double bond (for example, a vinylbenzyl group) at each end of the PAPE; and, in the second instance, to provide a triple bond (benzylethynyl group) at each end of the PAPE. The PAPE most preferably has a repeating unit which is the residuum of two dihydric phenols or thiophenols ('DHP') linked through a C=O, -S-S-, or -SO2-group, or a Si or C atom, and or ether O, or thioether S atoms. The preferred repeating unit is formed by reaction of a DHP such as bisphenol A (BPA) with a halogenated DHP such as dichlorophenyl sulfone (DCPS) so as to provide an alternating configuration. The repeating unit may also include a linking residue of a reactive solvent which residue provides chain extension in the backbone. An oligomer which is a homopolymer having a repeating unit in which at least four benzenoid rings are connected through ether O atoms, may also be difunctionalized. In particular, alpha , omega -di(phenol)aromatic polyether sulfone oligomers ('APS') are esterified so as to have terminal methacrylyl groups; and, etherified so as to have styryl end groups which are thermally crosslinkable. Illustrated are APS oligomers having BPA-DPS repeating units. The BPA moiety may be replaced with other diphenols. The synthesis of PAPE oligomers with terminal double bonds is carried out with a fast and quantitative modified Williamson etherification of the PAPE with an electrophilic haloalkyl reactant ('HAR') such as chloromethylstyrene ('CIMS') in the presence of a major molar amount (more than 50 mol% based on the number of moles of OH or SH groups originally present in the APS) of a phase transfer catalyst ('PTC') such as tetrabutylammonium hydrogen sulfate ('TBAH'). The vinyl groups at each end of the oligomer may then be converted to ethynyl groups by bromination of the DAPS in CH2Cl2 or CHCl3, followed by dehydrobromination in the presence of potassium-tertbuoxide (K-t-Bu''). The glass transition temperature (Tg) of the di(styrenated)APS after thermal curing is unexpectedly much higher than that of the APS from which it is derived.
专利号:US-2013035532-A1 优先权日:2006-10-13 标题 :Synthesis of terminal alkenes from internal alkenes via olefin metathesis
专利号:US-2010145086-A1 优先权日:2006-10-13 标 题:Synthesis of Terminal Alkenes From Internal Alkenes Via Olefin Metathesis